Interactive Conversion Tool

To use this tool, simply find the appropriate equation, and type the value you would like converted in the entry box on the left. Then press the Tab button to generate the converted value in the box on the right.

Assumptions:
Methane content of LFG is 50%
Methane heat content is 1,012 Btu/scf methane
Weighted average heat rate for LFG-fired engines, turbines, and boiler/steam turbines is 11,700 Btu/kWh
Amount of LFG in scfm is the amount of LFG available for utilization

Assumption:
300 scfm of LFG is available for utilization for every million tons of WIP

Tons of waste-in-place(WIP)=Million standard cubic feetper day (mmscfd) of LFG

Assumption:
300 scfm of LFG is available for utilization for every million tons of WIP

Tons of waste-in-place(WIP)=Megawatt (MW)capacity

Assumptions:
300 scfm of LFG is available for utilization for every million tons of WIP
Methane content of LFG is 50%
Methane heat content is 1,012 Btu/scf methane
Weighted average heat rate for LFG-fired engines, turbines, and boiler/steam turbines is 11,700 Btu/kWh

Note:
Assuming an average waste density and depth for a typical landfill acre containing municipal solid waste, it is estimated that an LFG collection well will recover approximately 10 to 30 standard cubic feet per minute (scfm) of LFG.Assumption:
Ratio of LFG collection wells to acres of landfill waste is 1 (i.e., 1 well per acre)

Short tons of methane=Million metric tons of carbondioxide equivalents (MMTCO2E)

Assumption:
Global Warming Potential (GWP) for methane is 25. The GWP for methane was updated in July 2014 to reflect the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC).

Short tons of carbondioxide=Million metric tons of carbondioxide equivalents (MMTCO2E)